Washer-placing apparatus



July 20 1926.,

A. P. LEWIS WASHER PLACING APPARATUS I Filed April 1924 2 Sheets-Sheet 1 July 20 1926.

A. P. LEWIS WASHER PLACING APPARATUS 2 Sheets-Sheet Filed April 24, 1924 m ILA. m r

attoz mu} ill) Patented July 20, 1926.

UNITED STATELS PATENT OFFICE,

ARTHUR I. LEWIS, OF AKRON, OHIO, ASSIGNOB, TO THE MILLEB RUBBER COMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO.

, v V, WASHER-PLACING APPARATUS.

Application filed April 24, 1924.

My present invention relates to improvements in devices for placing washers on the pins of heel molds preparatory to their being incorporated or embedded 1n rubber heels during the manufacture thereof.

The invention aims to provide a simple and economical form of apparatus by which the washers may be expeditiously handled and accurately placed on the pins, and the said invention comprises the novel features of construction and arrangement and combination of parts hereinafter described and particularly defined by the appended claims.

An embodiment of my invention is illustrated in the accompanying drawings, in which Figure l is a longitudinal sectional view of a washer-segregating plate.

Fig. 2 is a similar view of the plate loaded.

Fig. 3 is a similar view illustrating the washer-transferring device applied to said plate.

Fig. i. is a view of like character showing the transferring device after having been applied to the heel mold and the washers released and deposited on the mold pins.

Fig. 5 is a plan view partly broken away.

Figs. 6, 7 and 8 are detail views on a larger scale.

Referring by reference characters to this drawing, the numeral 1 designates a washersegregating plate or tray which is provided with a group or groups of washer-receiving recesses 1 of such shape that when a miscellaneous bunch of washers has been placed or dumped on the tray and the latter shaken or reciprocated, as the washers slide around over the face of the tray certain of them will come to rest in the recesses. whereafter the remainder may be removed by tilting the tray and allowing them to slide off into a suitable receiver (not shown).

lit will be understood that the washers used in heel molds as above described, have frusto conical or dished central. portions, and in order that only those which are convex side up on the tray will be seated in the recesses, the edges of the recesses are beveled or inclined, as shown at a so that all washers which are convex side down will slide across the openings. Such a washer segregating device forms, per se, no part of the present invention, and as a matter of tact maybe of any desired form and adapt- Serial No. 708,762.

ed to be shaken either by hand or by a suitable agitating device.

llt will further be understood that the washer seats or recesses constituting the group, are positioned to correspond to the arrangement of washer-receiving pins 2 in the heel mold 2.

7 My improved washer handling device comprises magnetic means for transferring the washers trom this positioning or segregating device to the pins of the heel mold, and in the preferred embodiment shown in the drawings, comprises a pin ality of carrying n'iembers which may bein the form of plates 3, a and 5, respectively superposed in spaced relation. Plates 3 and 4 are provided with alined holes 3* and 4 respectively, and corresponding in number and relative axial position to the pins of the heel mold. iVithin the holes 3 are slidable magnet strippers in the form of bushings 6 having enlarged heads which rest on the upper surface of member 3, and prevent them from dropping completely through the openings. Slidably located in the openings 4 of the plate 4; are corresponding magnets 7 preferably of the permanent type, having enlarged heads 7* to prevent their dropping through the openings, the magnets being long enough to extend into the hollow centers of the stripper bushings 6 in order to function as hereinafter described.

The three plates or frames are united in such a manner that they can be manipulated as a whole, and plates 4 and 5, while being maintained the same distance apart, can be moved relatively towards and from plate 3. The means for so holding the plates preferably takes the form of bolt members 8 pass ing slidably through the upper plate 5 and having reduced lower ends passing through openings in the lower plate which is se cured in place by nuts 8 Surrounding the upper portion of each bolt is a bushing having an enlarged portion 9 lying between and properly spacing plates at and 5 and a reduced portion 9 passing through a corresponding opening in the plate or frame 4. Surrounding the depending portion of bush ing 9* and under compression between members 3 and i is a snring 10 which tends to force members 3 and i apart to the limit or movement allowed by the bolts, but it will readily be observed that members a and, f

mar be moved towards member 3, or vice velsa, by the application of suflicicnt pressure to overcome the force of the springs.

Means are provided for this purpose which preferably talzes the form of bolt members 8" which are sir. ilar the bolts 8 (and have the same cooperating bushings and springs), except that the bolts are elongated at their upper ends and provided with cam members 11 provided with handles ll for rotating them, such cam members being designed to coact with stationary cam members 12 fixed to the plate 5. Preferably I use two sets of bolts 8 and two sets with the cam devices, the two latter by reason of their intermediate location, being sutlicicnt to eiticiently compress the springs. shaker or segregating plate 1 and the plates or frames 3, and 5; and stripper husnri 6 are made of nonmagnetic material.

lVith the parts in the position shown in Fig. 8, it will be observed tl the plates 3 and 4 have been caused to approach each other by the rotation of the cams to proper position and the lower ends of the magnets are therefore exposed. If the device is now properly positioned above the shaker plate 1. to align the magnets with the washers in the washer seats, which alignment may be effected by the use of dowel pins 15 on the shaker plate engaging dowel openings 1% (preferably bushed) in plate 3, the washers, being of iron or steel, will adhere to the ends of the magnets.

The device may then be removed and ap plied to the heel mold, being aligned therewith by the dowels 15 of the mold entering the dowel openings 14 of the plate 3 which will cause the magnets to position the washers directly above the mold pins.

Rotation of the cams will then allow the springs to force plates 8 and 4 apart which will cause the magnets to be drawn up within the stripper bushings and the washers will be stripped from the magnets and left on the mold pins, as shown in Fig. 4.

The washer-engaging ends of the magnets are prefer-ably counter-sunk to conform to the convex shape of the bushings, and provided with central bores to permit the mold pins to pass up into the magnets, whereby the ,device may be manipulated to actually place the washers on the pins instead of merely dropping them on.

Due to the fact that the magnets are slid.- ingly held by the plates and bushings, they are free to yield upwardly to allow for any inequalities in heigl it of mold pins.

Having thus described my invention, what I claim is 1. A washer placing device comprising a carrying member, a group of magnets carried thereby is determined relation, "and me "us for stripping the washers from the magnets.

2.. A. washer placing device comprising a carrying member, stripper bushings carried thereby, a plurality of magnets slidably guided in said bushings, and means for carrying said magnets to be projected from or withdrawn within the bushings.

53. A device for placing washers on the pins of heel. molds comprising carrying means, magnets carried thereby having mold pin receiving recesses, and washer stripping means cooperating with said magnets.

4. A device of the character described comprising a pair of carrying members su perposed in spaced relation tubular strippers carried by the lower member, magnets yieldably carried by said upper member and having their lower ends guided in the openings in the strippers, and means for moving said carrying members towards and from each other.

5. A device of the character described comprising a pair of'carrying members superposed in spaced relation, stripper bushings carried by the lower member, magnets yieldably carried by said upper member and having their lower ends guided in the openings in the bushings, springs tending to force said members apart, and means for pressing one of said members towards the other and holdng it locked in such position.

6. A device for placing washers on heel mold pins comprising upper and lower carrying members having aligning openings, stripper bushings yieldably seated in the openings in the lower member, magnets yieldably held in the openings in the upper member and projecting into the bushings, and means for moving the members towards and from each other.

'7. A device for placing washers on heel n'mld pins comprising upper and lower carrying memb rs having aligning openin s, stripper lmshings yieldably Seat .d in the opcnings in the lower member, i'nagnets yieldab'ly h .ld in the openings in. the upper member. having tubular ends and projecting into the lmshings, and means for moving the mcn'ibers l wards and from each other.

8. A device for placing washers on heel mold pins, connvrising a pair of carrying n'iembers rigidly connected in spaced relation. the lower llrC'llllJQl' having one or more g oups of openings, magnets slidahly held in said openings and having heads above said is named plat-e adapted to limit the'vcrtical movement of the ma rets, a third carrying memliie r inovahly st rted beneath said lower member and having a group or groups of larger openings axially aligned with said openings in said lower member, bushii sli'dabl'y seated in said openings in the 111'. ably supported member, and encircling said magnets, said lnishii'nrs having e'nl'ai ed heads lying between said lower member and said inov'ab'le member, and means for rm-- ing said movable member towards and trom said lower member.

9.1K. device of the character described comprising a pair of carrying members superposed in spaced relation, stripper bushings carried by the lower member, magnets yieldably carried by said upper member and having their lower ends guided in the openings in the bushings, springs tending to force said members apart, and means for pressing one of said members towards the other and holding it locked in such position, said means coi'nprising bolts having their lower ends rigidly connected to said lower member and passing slidably through said upper member, and cam means for acting on the upper ends o't said bolts.

10. A device for placing washers on heel mold pins, comprising a pair of carrying members rigidly connected in spaced rela tion, the lower member having one or more groups of openings, magnets slidably held in said openings, and having heads above said last named plate adapted to limit the vertical movement of the magnets, a third carrying member movably supported beneath said lower member and having a group or groups of larger openings axially aligned with said openings in said lower member, bushings slidably seated in said openings in the movably supported member, and encircling said magnets, said bushings having enlarged heads lying between said lower member and said movable member, and means tor moving said movable member towards and from said lower member, said means com prising bolts rigidly connected to said 1nov able member and passing through the rigidly connect-ed upper members, and cam means for acting on the upper ends of said bolts.

11. A device for placing washers on heel mold pins, comprising a pair of carrying members rigidly connected in superposed spaced relation, bushings carried therebetween having reduced ends extending through the lower member, a third carrying member beneath the lower member of said pair, bolts slidably seated in said bushing and connected to said third member, compression springs encircling the reduced portions of said bushings between said lower and third members, one or more groups 0t magnet strippers carried by said third member, and magnets associated with said strippers and supported by said lower member.

12. A device for placing washers on heel mold pins, comprising a pair of carrying members rigidly connected in superposed. spaced relation, bushings carried therebctween having reduced ends extending through the lower member, a third carrying member beneath the lower member of said pair, bolts slidably seated in said bushing and connected to said third member, com pression springs encircling the reduced por tions oi": said bushings between said lower and third members, one or more groups ot tubular magnet strippers carried by said third member, magnets supported by said lower member and depending into said strippers.

1.3. In combination a sorting table having individual washer receiving recesses, and a transfer plate having individual magnets po sitioned to align with the recesses in the sorting table whereby the magnets will pick up the washers from the recesses.

14. A t anster plate adapted to pick up a plurality of properly positioned washers, comprising individual horse-shoe magnets attached to the plate in positions to align with the washers.

In testimony whereof I aflix my signature,

ARTHUR P. LEVJIS. 

